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CVE-2019-19807

25
FAUCET Score

CVE-2019-19807 is a use-after-free vulnerability in the Linux kernel (before version 5.3.11), specifically within the sound/core/timer.c component, affecting various Canonical and Linux distributions. This flaw, stemming from erroneous code refactoring, allows a local attacker to achieve high impact on confidentiality, integrity, and availability with low attack complexity. While rated as a high severity vulnerability with a CVSS score of 7.8, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.9.199, < 4.9.201CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.14.152, < 4.14.154CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19.82, < 4.19.84CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.2, < 5.3.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 82nd percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1160.rt56.1131.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1160.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-193.13.2.rt13.65.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-193.13.2.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: kernel-0:4.18.0-147.24.2.el8_1
View patch

Vendor Advisories (1)

redhatCVE-2019-19807Important

kernel: use-after-free in sound/core/timer.c

Nov 6, 2019

References

cdn.kernel.org / pub/linux/kernel/v5.x/ChangeLog-5.3.11
Release NotesVendor Advisory
github.com / torvalds/linux/commit/e7af6307a8a54f0b873960b32b6a644f2d0fbd97
PatchThird Party Advisory
git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
ExploitPatchVendor Advisory
security.netapp.com / advisory/ntap-20200103-0001
Third Party Advisory
usn.ubuntu.com / 4225-1
Third Party Advisory
usn.ubuntu.com / 4227-1
Third Party Advisory
usn.ubuntu.com / 4227-2
Third Party Advisory